No, but I know mine run fast!! That is something to do on a weekend, go to the track with a stopwatch and see how fast they run. My two can be at the end of the street before I know they are out the door. I know from experience not to let them out without a leash and me on the other end of the leash! For small dogs with short legs they are quick!!!

I have learned to call them then turn the other way, they usually follow. That hardly ever fails, it's just the turning the other way, I try to run backwards so that I don't take my eyes off of them. I know that looks pretty stupid, but I don't want to take my eyes off of them in case they don't follow me.